AirHint found the following cheapest return flights from Geneva (GVA) to Montreal (YUL) in September 2025 (see full year).

Return flights

22 Sep - 01 Oct	easyJet
04 Sep - 07 Sep	Air Canada
15 Sep - 22 Sep	Air Canada
17 Sep - 24 Sep	Air Canada
01 Sep - 07 Sep	Air Canada
12 Sep - 21 Sep	easyJet
15 Sep - 28 Sep	Air Canada
04 Sep - 10 Sep	Air Canada
05 Sep - 11 Sep	Air Canada
24 Sep - 09 Oct	Lufthansa
14 Sep - 21 Sep	Lufthansa
06 Sep - 13 Sep	KLM
30 Sep - 03 Oct	easyJet

Also check the deals for one-way flights from Geneva to Montreal in September.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Geneva to Montreal in September from 439€

Return flights